Container



W. A. RINGLER CONTAINER June 27, 1939.

Filed Febwll, 1938 4 Sheets-Sheet l Frizz/1r INVENTOR Mb? WMMZQA ATTORNEY June 27, 1939. x, v I WQA. RINGLER 7 2,163,703

CONTAINER Filed Feb. 11, 1958 4 Sheets-Sheet 2 ATTORNEY June' 27; 1939. w A RiNGLER V 2,163,703

' I CONTAINER Filed Feb. 11, 1938 4 Sheets-Sheet 3 I Ii INVENTOR I glam/12%;!

ATTORNEY June 27, 1939. w A. RINGLER ,7

- CONTAINER Filedv Feb. 11, 1958 4 Sheets-Sheet 4 I? 3 it E i i,

2 g 71 INVENTOR ATTORNEY Patented June27,

CONTAINER William A. Ringler, Wayne, Pa., asslgnor to Nationai rolding Box Company, New Haven, Com, a corporation of New Jersey i Application February .11, 1988, Serial No. 189,938

13 Claims.

is invention relates to containers, and more particularly to containers formedfrom paperboard material adapted to ebe shipped in collapsed knockdown condition, and which may thereafter be conveniently assembled by the user as needed.

- In accordance with my invention, a container is provided-comprising a tubular body member which may be formed of a selected paperboard of the requisite strength and toughness. The body member may be formed from a flat blank of pa.- perboard which has previously been out and scored to the desired'sha'pe and size, and which is thereafter suitably secured together in tubular form. Diagonally opposed fold lines are, provided in the body member to permit substantially fiat collapse thereof. The container may also be mad of spirally wound paperboard provided with the requisite, score lines diagonally arranged to permit collapse for convenient shipment and storage. The bottom construction is so formed that it may be assembled to the body member by the user without the use of adhesive, stitching, staples, or other securing means. The bottom construction is formed by telescoping a relatively stiff paperboard bottom-forming expansion disc intothe tubular body member. A series of tongues extend fromthe lower end of the body portion of the body member, which tongues are folded around a locking hoop or ring which also may be formed of paperboard material, the tongues having a tongue portion folded around the outside face of the locking ring and a tongue portion inserted'between the locking ring and the adjacent expansion disc and thus held clamped therebetween, either by the weight of the contents, by a liner member, or by tabs seating against the inside face of the adjacent expansiori disc. When so constructed, it is well nigh imsupport contents of considerable bulk and weight.

possible to withdraw or release the tongues from their locked position without actually severingor lacerating them, and the associated tongues and locking rings thus provide an unusually rigid and strong flange of substantial width which providesa sturdy seat for the bottom-forming expansion disc. The container may be provided with a cover construction which, desired, may bev made similar to the bottom construction.

My improved container is highly adapted for the packaging of numerous products either semiiiquid, granular, or coarse in character, and will Merchandise varying in bulk from one pint to ten or more gallons and merchandise weighing from one pound to one hundred pounds, can be economically and satisfactorily packaged therein. The broad flange construction at the bottom of the container permits convenient vertical stacking of the packed containers, and at the" same time this broad flange construction mainwhich' the container restsi tains the bottom-forming expansion disc out of contact with wet or moist floors or surfaces on This container, therefore, is in many respects superior to paperboard containers heretofore provided having a vertically extending bottom flange, which flange often bends or buckles under the weight of the contents or because the flanges become weakened through contact with moisture. Such vertically extending flanges alsomake it difficult to conveniently stack the packed containers one on top of th other. All of these diiflculties are obviated in my improved container construction where an inwardlyextending bottom-supporting flange is provided. Aninwardl'y extending flange at the top of the containersimilar in construction to the bottom flange, may also be provided to provide a broad seat for the container superimposed thereover.

An object of this invention is to provide-an improved container of paperboard material, which maybe shipped and stored in collapsed knockdown condition and thereafter set up by the user as needed without the use of staples, stitching, adhesive, or other securing means-which is' sturdy'and strong in construction, substantially siftproof and ieakprooi, and which is admirably adapted for the packaging of materials of substantial bulk and weight.

Another object of this invention is to provide an improved knockdown container provided with a broad inwardly extending supporting flange for supporting the end closure member, which will not become deformed during use and which permits convenient vertical stacking of the containers one upon the other.

Another object of this invention is to provide an improved knockdown container which is adapted for manufacture by automatic machinery and which can be quickly and automatically assembled into container form by-the user as needed.

Other objects of this invention will become apparent as the disclosure proceeds.

Various other features and advantages of the invention will be apparent from the following particular description and from an inspection of the accompanying drawings.

Although the novel features which are believed to be characteristic of this invention will be particularly pointed out in the claims appended hereto, the invention itself, as to its objects and advantages, and the manner in which it may be carriedout, maybe better understood by referring tothe following description taken in connection with the accompanying drawings forming a part thereof, in which:

Fig. 1 is an expanded view of a paperboard blank cut and scored to formthe body member of'my improved knockdown container;

Fig. 2 is a face view of an expansion discused bottom end of the tubular body member to form a seating flange tor the bottom-forming expansion disc;

Fig. 4 is a perspective view of a series of stacked collapsed body members each formed from the blank illustrated in'Fig. 1;

Fig. 5 is a fragmentary vertical cross-sectional view through the body member, the bottom expansion disc and locking ring in position for assembly;

Fig. 6 is a vertical cross-sectional view through the fully assembled container with a telescoping cover member applied thereto;

Fig. '7 is a plan View of the bottom end of the container;

Fig. 8 is a vertical cross-sectional view through .the assembled container illustrating particularly the assembly of the locking ring and locking tongues extending from the body member;

Fig. 9 is a plan view of a body-forming blank of somewhat modified construction, this blank being provided with looking tongues and tabs extending from both ends of the body-forming blank;

Fig. 10 is a plan view or an expansion disc which may form the top closure for the container;

Fig. 11 is a plan view of a locking ring which cooperates with the locking tabs and tongues exi the tubular body tending from the upper end member and which together serve to hold the top closure disc in fixed container-closing position;

Fig. 1 2 is a perspective view of the body-forming blank shown in Fig. 9 assembled into tubular form to provide a container body, this view also showing thelocking tabs and tongues at the top end of the container body arranged to receive the top closure expansion disc and the top clo-' sure locking ring:

Fig. 13 is a perspective view of illustrated in Fig. 9 and the end-closure discs and. associated locking rings illustratednn Figs. 2, 3, 13

and 14;

Fig. 16 is a vertical cross-sectional view through the completed container, this view being taken on line l8-l6 01 Fig.

Fig. 17 is a face view of an' expanded blank which has been cut and scored to provide a liner member or sleeve for my improved container;

Fig. 18 is a plan Viewer a fragmentary portion of a body-forming blank having locking tongues extending from each end thereof, which a blank when assembled into tubular form is adapted to receive and contain a liner member formed irom the blank illustrated in Fig. 17;

Fig. 19 is a perspective view of acontainer assembled from the body-Iorming'blank shown in Fig. 18 and the liner-forming blank shown in Fig. 1'7, this view showing the top portion of the tubular body member severed and removed from the lower portion or the body member so that the upper portion 01 the body member forms a cover for the lower portion oi the body member;

Fig. 20 is a perspective view of the assembled top portion of the body member serving as a the top closure 1 expansion disc ready to be applied to the top end cover for the lower portion of the body member;

Fig. 21 is a perspective view of the container illustrated in Figs. 19 and 20 as it appears when fully assembled prior to separation of the upper cover-forming body portion from the lower contamer-forming body portion of the body member, asealing strip also being shown to seal the joint therebetween; and

Fig. 22 is avertical cross-sectional view of the fully assembled container illustrated in Fig. 21, this view being taken online 22-22 of Fig. 21.

Similar reference characters refer to similar parts throughout the several viewsof the drawings and the specification.

Referring more particularly to Figs. 1 tot! inelusive, which show one form of knockdown con-' tainer embodying the features of my invention, I provide a body-forming blank A, as shown in Fig. 1, which has been suitably cut and scored to form the bottom member of the container. A bottom-closure expansion disc B, illustrated in Fig. 2, isadapted tobe inserted into the tubular body member assembled -from the blank shown in Fig. 1, and a ring member C, which may be formed of relatively stifl paperboard material, is provided to support and retain the relatively stiff bottomforming expansion disc B within the tubular body member.

The body-forming blank A comprises a body portion I having tongues a comprising tongue;

portions 3 hinged to the lower end of the body portion I along a continuous score line or fold 3 are adapted to be from by a relatively broad crease or fold line 5.

when the body member is assembled the tongue portions 4 extend inan outwardly direction and ma position generally parallel to the tongue vpor-- tions 3. V

In assembling the container, the body-forming blank A is folded into generally tubular form with the side edge ID of the body member positioned in overlapping relationship with respect to the securing flap ll extending from the other side edge of the blank. Suitable means may be used to secure the side edge ID to the securing flap H to fixedly retain the body member in generally tubular form. Such secur g means. may comprise staples 100, as illustrated in Fig. 4, although it is understood thatsecuring means, such as adhesive, stitches, rivets, or other securing means may-be used to secure the side edge portions l0 and II of the blank A together so as to provide .a tubular body member.

Diametrically spaced crease or fold lines 8 extending longitudinally across the body portion I may be provided to permit the tubular body member to be arranged in substantially flat collapsed position, as illustrated in Fig. 4, during shipment and storage. The tubular body member may be given-any desired cross-sectional contour, such as circular, elliptical, arcuate. or polygonal cross-section. To eflect the desired shaping otthe tubular body member, suitably arranged longitudinally extending fold lines 9 may be provided which traverse the body portion i as well as the tongue portions 3 and 4, if desired. Thus, by providing suitable spaced crease lines 9 in the tubular body member or by eliminating them entirely, the tubular body membermay be given any desired crosssectional contour.

,The bottom construction is assembled to the tubular body member by first inserting the relathe peripheral edge .0 of the expansion disc B is positioned adjacent the circumferentially extending score line 2 in the tubular body member, as illustrated in Figs. 5, 6 and 8. The ring member C is then telescoped inwardly of the tab portions 4 and beyond the relatively broad fold lines 5 which define the tab portions 3 from the tab portions 4. As illustrated more particularly in Figs. 6 and 8, the tongue portions 8 are then folded over the outside face of the ring member 0 and the tongue portions 4 are tucked in between the inside face of the ring member C and the expansion disc B. As thus arranged, the peripheral edge III of the ring member C tightly abuts the insidefaceof the tubular body portion l and is positioned at a point adjacent the circumferentially extending fold line 2. The tab portions 3 are of such length as to extend across the entire width of the ring member C, so that when the bottom structure is assembled the inner peripheral edge Ii of the ring member C is positioned adjacent to and preferably abuts against the relatively broad fold lines 5 provided in the tongues. The tongueportions 4 extend in an outwardly direction substantially parallel to the inwardly extending tongue portions 3, the outwardly extending tongue portions 4 being held in clamped position between the ring member C and the expansion disc member B. It is evident that when the container is filled with merchandise, the downward pressure of the merchandise on the expansion disc B further assists in securely clamping the outwardly extending tongue portions 4 between the expansion disc B and the ring member C. The fold lines 5 are.

ofsuch width and so constructed as to permit the tongues to be conveniently folded around the inner peripheral edge 1| ofthe ring member C. As thus constructed the assembled tongues, comprising the tongue portions 3 and 4 and the ring member-C, provide a firm and rigid inwardly extending supporting fiange providing a firm and rigid seat and support for the relatively stiff expansion disc 13.

My improved container may be made substantially leakproof and siftproof and highly adapted to contain fine granular materials and liquid and semi-liquid materials. It will be noted that the side edges 6 of the tab portions 3 are so" cut and shaped that when assembled together with the ring member C, the side edges of the tab portions are arranged in tight fitting abutment, as shown in Figs. 7 and 8. The sideedges 1 of the tab portions4 are also so cut and shaped that when arranged in position between the expansion disc B and the ring member C, the side edges ofadjacent tongues are arranged in tight fitting abutment, providing a substantially leakproof and siftproof construction of these parts. It will be further appreciated that the peripheral edge of the expansion disc B is so shaped as to snugly conform to the inside contour of the body portion l of the tubular body member and, preferably, the expansion disc B is slightly oversize so that the peripheral edge 60 thereof will firmly press against the inside surface of the tubular body portion I so as to .provide a substantially siftproof and leakproof seal between the body portion l and the disc member B. p

Mechanical means'and mechanism may be provided to automatically insert the expansion disc B into the tubular body member A and also to fold or wrap the tongues 4 comprising the tongue portions 3 and 4 around the locking ring member space.

knockdown container of somewhat I form which is provided with substantially siftrigid paperboard material of requisite thickness.

Similarly, the locking ring members C may be cut from large sheets of suitable paperboard material at a high production speed by an automatic cutting and scoring machine. Staples I00 or, in

place thereof, stitches or adhesive may be applied to the side edge portions l0 and ll of the body-forming blank so as tb secure the body- C. Thecontainer-assembling apparatus which I forming portion of the blank intubular form,

an operation which can be performed by automatic machinery now available. Thus, all parts of the container may be .shaped and scored on automatic cutting and scoring machines and the parts constituting the container may be assembled together in container form automatically, so as to provide a highly serviceable container which can be producedand sold at relatively low cost.

My improved knockdown container is so made as to permit shipment to and storage by the user at a great saving in shipment and storage costs. The tubular body members A, when collapsed as shown in Fig. 4, may be arranged in compact stacked relationship so that a large number of body members occupy a very limited The expansion disc B and the ring member C are also susceptible of vertical stacking, effecting substantial economies in shipment and in storage costs.

The container is admirably adapted for the packaging of relatively bulky products of a granular or semi-liquid nature and the paperboard material which forms the container may be of requisite strength and toughness to support and contain a large volume of material of substantial weight.

I have shown in Fig. 6 one form of cover which can be used to close my improved container, this cover being of the usual slip cover type comprising a top wall 50 and a downwardly extending flange 5| which telescopes over the upper end of the body portion I of the container. Other types of coversmay, of course, also be used for the purpose.

I have illustrated in Figs. 9 to 16 inclusive, a

proof and leakproof closures for both ends of said tubular body'member. The body member may be formed from a blank of paperboard material, as illustrated in Fig. 1, comprising a body portion, i and a series of tongues a and tabs which may extend from both the lower and the upper end of the tubular body portion. The tongues 41 at the lower end of the body portion may be similar to the tongues a illustrated in Fig. .i and comprising a tongue portion i8 hinged to the body portion i alongthe fold or crease line l2. The

tongue portion It may beparranged to underlie the locking ring. A tongue portion I 4 connected to each of the tongueportions I! along the fold line II is constructed to extend inah outwardly modified that this invention is not limited to the alternate.

arrangement illustrated. Similar tongues and tabs may be provided to project from the upper end of the body portion 1 to retain the top closure member of the container in fixed position.

In assembling-the container illustrated in Figs. 15 and 16, thefree side edges to and it of the body-forming blank,.as illustrated in Fig. 9, are first secured together as by staples, adhesive, stitching or other suitable means, to provide a tubular body member. The tabs id extending from thelower end of the body portion are then swung inwardly and an expansion disc B is then inserted into the body portion through the lower end of the container so that the expansion disc B will rest against the inturned tabs iii. A ring member C is then telescoped into position so that the peripheral edge 10 thereof substantially seats adjacent the inside face of the fold lines 82. The

tongue portions l3 are then swung inwardly, and

finally the tongue portions l4 extending from the tongue portions 13 are tucked in between the ring member C and the expansion disc 18, as illustrated in Fig. 16. When so arranged the tongue portions l3 support the ring member C and the tongue portions l8 extending outwardly substantially parallel to the tongue portions (33 serve to lock and tie the tongues a to the ring member.

The fold lines I! along which the tongues 42 are hinged to,the bodyportion l and the fold lines ll along which the tabs l8 are hinged to the body portion l, are spaced apart in the manner illustrated in Figs. 9 and 16 approximately the thickness of expansion disc B, the tongue portions I4 and the ring member 0. It will thus be seen that the expansion disc B is held clamped and gripped between the inwardlyextending tabs l8 and the outwardly extending tongue portions l4, and when contents are inserted into the container the weight of such contents will increase the gripping andbindlng action between the parts forming the bottom of the container. The expansion disc B snugly conforms to the inside .-contour of the body portion of the container and is preferably slightly oversize so as to provide a snug fit therewith.

when the expansion disc B and ring member C have been assembled with the body portion. as illustrated in Figs. 12 and 16, the container is then ready to receive the contents. After the contents have been inserted a sealed closure may be applied thereto. The sealed top closure, as

illustrated in Figs. 12 and 16, may be made similar to the bottom closure. As shown in Figs. 9

to 16, a series of tongues 0. comprising tongue portions l3 and II extend from the top end or the body portion I and, if desired, may be alternately arranged with tabs l8 therebetween. The tongue portion II are hinged along a 'fold line 12' to the body portion I, each tongue portion I3 being provided with a tongue portion ll hinged thereto along the fold line I Each tab I6 is hinged to the body portion I along the fold line H, the fold lines I2 and I1 being spaced apart a suflicient distance to accommodate the thickness or an expansion discB'. the tonsi P rv area-roe B and the bottom locking ring C, as illustrated in Figs. 2 and 3.

In closing the container, the tongues Ii are turned inwardly, as illustrated in Fig. 12. The expansion disc B is then positioned over the tabs 85' with the peripheral edge 80' of the expension disc B closely abutting against the inside faces of the tongue portions II. The ring member C is then telescoped into the raised tongue portions it to a point where the peripheral edge E6 of the ring member C is positioned substantially adjacent to the fold lines l2. The

tongue portions iii are then folded to overlie the outside face of the ring member 0' and the tongue portions 5 3' are then tucked in between the outside face of the espansiondisc B and the inside face of the ring member C, providing an assembled construction, as illustrated in Figs. 15 and 16. 'The bottom closure and the top closure of the container illustrated in Figs. 15 and 16 'are substantially identical, the parts forming the same comprising the inwardly extending tabs, the locking tongues, the expansion discs and the locking rings being substantially identical. I

with the closure construction as illustrated in Figs. 12 to 16 inclusive, it is well nigh impossible to extract or pull out the tongue portions M from theirlocked position between the locking -rlng C and expansion disc B without lacerating the tongues a. Opening of the container, therefore, may be conveniently effected by cutting oil the tongues :1 along the iold'line l2]. permitting removal of the tongues a', the locking ring 0' and 'the top closure expansion disc B.

In the event it is desired to leave the top closure expansion disc B in position, the closure disc B may be provided with a removable portion 8| defined by a line of perforations 82, A tab 84 connected to the removable portion 6| may be out free of the expansion disc B by an arcuate out line 65, which tab 64 may be grasped to liit out the removable portion 8|. The removable portion Il may be so made as to hinge upwardly by providing spaced cut lines 86 at the termini of the line of perforations 62. The removable portion 6l may then be swung upwardly, as illustrated in Fig. 16, permitting the contents to be poured out.

The container as illustrated in Figs. 9 to 16 inclusive may be made in various diflerent forms within the purview of this invention. By way of example, the inwardly projecting tabs l8 at the bottom of the container and I8 at the top of the container may be eliminated, if desired". Also,.

' bottom construction only, similar to that shown in Figs. 6 to 8 inclusive, with the inwardly extending tabs id and tongues 11 comprising tongue portions I3 and N 7 It will thus be appreciated that various diiierent combinations of parts illustrated may be provided within the purview of this invention. Y

-I have illustrated in Figs. 1'1 to 22 inclusive, another modified form of container comprising a cover separable from the body but formed item provided at the upper end of the body portion only.

mg provided with a suitable liner member or' sleeve. The body member of this container'is formed from a blank A, as illustrated in Fig. 18, comprising a body portion I and tongues a simi-- lar to the tongues a-provided in the blank shown in Fig. 1 but extending from both the bottom and topedge of the body portion I. More particularly, the tongues 11. extending from the body portion I of the blank comprise tongue portions,3 hinged to the body portion I along the fold line2, and a tongue portion 4 hinged to each of the tongue portions 3 along the fold line 5. A line of perforations 3| traverses the blank forming the body portion circumferentially thereof so as to provide a cover-forming flange portion I separable from the-body portion I of the container. Tongues a are hinged to the upper edge of the cover-forming flange portion I', each tongue a comprising a tongue portion 3 hinged to the flange portion I' along the fold line 2 and tongue portion '4' i inggd tovthe tongue portion 3' along the fold ine 'I'he body-forming blank, as shown in Fig. 18, is held in tubular form by securing the side edges thereof together as by staples, stitching, adhesive, rivets-or other securing means. A liner or sleeve member D may then betelescoped into the tubular body portion, which sleeve member may be formed from a paperboard blank cut in the formillustrated in Fig. 17. This sleeve member comprises body portion 20, the side edges of which are secured together by staples IIlI, adhesive,

- stitching, rivets, or other securing means. If desired, such securing meansmay be entirely eliminated since the sleeve member will be held in the desired shape by the outer surrounding tubular body member A Longitudinally extending fold lines 22 may be provided in the'body portion 20 of the sleeve member so spaced as to conform to the fold lines 8 provided in the-body portion I- and the cover-forming flange portion I of the body blank A". The longitudinal length of the body portion 20 of the sleeve member D may be substantially'equal to the longitudinal length of the body portion I and cover-forming flange portion I of the blank A as shown in Fig. 18. If desired, inwardly bendable tabs 24 may be provided alongjthe bottom edge of the body portion 20 of the sleeve member, which tabs 24 are hinged to thebody portion 20 along thefold line 23. These tabs maybe so cut that when turned in- Wardly the side edges 25 thereof will be arranged in close abutting relationship. Similar tabs 24" hinged to the upper edge of the body portion 20 along the fold line 23' mayalso be provided,which, when turned inwardly, will present the edges 25' of the tabs in abutting relationship.

In assembling this container, the body portion 1 and-the cover-forming flange portion If secured together along the line of perforations 3| are first folded into tubular form with the side edges thereof suitably secured together to provide a tubular body ofthe desired shape, size'and contour. The tubular sleeve member D assembled from the blank shown in Fig. 17, is then telescoped into the tubular body portion I and coverforming flange portion I. The tabs 24 of the sleeve member D are then turned inwardly, .as illustrated in Fig. 22, and an expansion disc B, which may be of the form illustrated in Fig. 2, is

' then positioned within the tubular body portion I so as to abut the inturned tabs 24 of the sleeve 1 5 then telescoped into position so'that the peripheraledge thereof lies substantially adjacent to the fold line 2 of the tongues a. The tongues a are then turned inwardly so that the tongue portions 3 overlie the outside face of the ring member.

C, and finally the tongue portions 4 are tucked in between the ring member C and expansion disc B and thus firmly locked in position. Theoutward pressure exerted on the expansion-disc B'both by the tabs 24 formed on the sleeve member D as well as the weight of the contents of the container serve to clamp the tongue'portions 4 in fixed position between the expansion disc B and the ring member C.

The container thus formed is then filled with contents and a top closure expansion disc, which may be similar to expansion disc B shown in Fig. 2 or expansion disc B shown in Fig. 10, is then positioned to overlie the inturned tabs 24 of the sleeve member D. A locking ring Cf, similar and expansion disc B, securely locking the end closure expansion disc B between the inturned tongue portions 4' and the inturned tab portions 24' of the sleeve member D. A tightly sealed, substantially siftproof and leakproof container is thus provided.

To prevent separation of the cover-forming flange portion I from the body portion I of'the container, a sealing strip 30 may be adhesively secured over the line of perforations 3|, asiilustrated in Fig. 21. To open the container, the sealing strip 30 may be stripped off or severed to permit the cover, as illustrated in Fig. 20, to be lifted off from the body portion I and the internal sleeve member D of the container. In the construction here shown, the tabs 24 and 24' extending respectively from the lower end and topend of the body portion of the sleeve member D may be eliminated, if desired, so that the expansion discs B and B at the lower end and the top end of the container will abut directly against the adjacent free edges of the body portion 20. Thus, an

tainer may be provided. It will be appreciated that the sleeve member D may be made of paperboard material of any desired thickness, and if the contents are of considerable bulk and weight two or more sleeve members may be used.

structions previously made, a relatively narrow or sharp flange'portion has been provided at the bottom end of the container which makes it very diflicult for the containers to be stacked one upon the other. These narrow supporting flanges at the bottom of the container often become bent or deformed so that the container will not stand in the proper upright position, and such flanges beentirely smooth interior wall surface for the concome weakened when placed in contact with wet or moist. surfaces, particularly when made of paperboard material. The flanges at the bottom of the applicants container may be of any desired 6 width by making the ring member C or C of the proper width and the tongues a of the proper length. A sturdy and strong supporting flange for the container is thus provided which is not materially affected or weakened when placed in contact with wet or moist floors or surfaces and which permits convenient stacking of the filled containers one upon the other.

A container constructed in accordance with my invention can be made at relatively low cost entirely from paperboard material, .the thickness of the paperboard stock as well as its tensile characteristics and waterprooi'ness being selected in accordance with the requirements of the various materials packed therein. Numerous and various forms of containers of different shape and size may be made by following the teachings of my invention. It a thoroughly sealed, siftprooi and leakproof container is desired, it is preferable to provide tongues a. on the body-forming blank so out along the side edges d and I thereof that when arranged around the locking ring in assembled position they will be in close abutment. It is appreciated that either the bottom or the top end of the body member, as illustrated in Fig. 1, or

both the bottom and top ends of the body member, as illustrated in Fig. 18, may be provided with the locking tongues a arranged as above described.

As a further modification, and particularly where it is desired to hold the expansion disc B or B from inward telescoping movement prior to insertion of the contents in the container, or ii the container is only partly filled with contents, I provide inwardly extending tabs it at the bottom of the body member or inwardly extending tabs it at the top of the body member, to respectively seat against the inside face of expansion disc B at the bottom of the container or the expansion disc B at the top of the container, as illustrated more particularly in Fig. 16. It will here be noted that the inwardly extending tabs it and i6 form a seat which limits the inward telescoping movement of the end closure expansion discs B and B respectively. It is also appreciated that, if desired, the body member may be provided with closely spaced tongues a, as shown in Fig. 1,

at the bottom end thereof and alternately arranged tongues a and tabs l6, as illustrated in Figs. 12, 15 and 16, at the top thereof.

To further strengthen the construction and to surface the inside of the container, a liner member D, as illustrated in Fig. 1'7, may be provided which may be made of paper or paperboard which may be suitably waxed or treated, if desired, to preserve and protect the contents. The liner member D arranged in tubular form may be used in connection with a body member, as illustrated in Figs. 1 or 18; The ends of the body portion 20 of the liner member D serve as a support for the expansion discs B and B, as illustrated in Fig. 22, so that these discs are rigidly supported in fixed position. The liner member, if desired, may be provided with inwardly extending tabs 2% at the bottom thereof and/or inwardly extending tabs 2! at the top thereof, if desired, or these tabs may be eliminated.

It will be noted that the entire container may be completely assembled without staples, stitching, adhesive, or other securing means, except only such stitching, adhesive or staples I" as may be necessary to secure the body member in tubular form. Even these staples, stitching, adhesive. or securing means may beeliminated by making the body member-oi the container of spirally wound paperboard, well known in the art, which may be provided with diametrically opposed crease lines 'to permit substantially flat collapse thereof. The

container is admirably adapted to be shipped as separate divisible parts arranged in collapsed or fiat stacked position, occupying a minimum of space during shipment and storage. The container has the further advantage that it can be quickly and easily assembled by the user as needed without requiring the application of any securing means to hold the bottom or top end wall construction to the body of the container, by the use of the expansion discs B and B and the locking rings C and C held in position by the inturned outturned tongues a. Whenthe tongues a, as shown in Figs. 6, 16 and 22, are wrapped around the respective locking rings C or C, a secure seallng lock is provided, making it well nigh impossible to withdraw the tongues a from their locked posi tion without cutting or destroying the tongues themselves. A broad supporting flange or base for the end closure-forming expansion disc is thus provided, producing a container of great strength and serviceable in the packaging of bulky materials weighing from one to one hundred pounds. Materials such as salt weighing fifty pounds, have been successfully packed in the container herein described, the container being of ample strength to withstand the rough handling which containers for this purpose receive during shipment. The container may be made substantially siftproof and leakproof by following the teachings of this invention.

While certainnovel features of the invention have been disclosed and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes may be made by those skilled in the art without departing from the spirit oi the invention.

What is claimed is:

i. A container including, a tubular body portion, tongues extending from one end of said body portion, a body-expanding disc positioned within said body portion forming an end closure for the container, and a locking member positioned exterior to said disc, said tongues each having a portion extending exterior to said locking member and an end portion extending outwardly between said locking member and said disc,the outwardly extending end portions of said tongues having their side edges in close abutting relationship, said locking member and tongues cooperating to provide a supporting seat for said disc.

2. A container including, a tubular body por-' tion, a body-expanding closure member positioned within said body portion forming an end closure for the container, and means providing a supporting seat for said closure member, said means including a ring member positioned adjacent said closure member. and tongues extending from the adjacent end of said body portion, said tongues having a portion exterior to said ring member and an end portion extending outwardly between said ring member and said closure member.

3. A container including, a tubular body portion, an end member tightly fitting within said body portion and forming an end closure for the container, and means providing a supporting seat for said end member including, a hoop member positioned exterior to said end member having exterior and interior edge portions, and tongues extending from the adjacent end of said body portion folded around the exterior and interior edges of said hoop member, said tongues having an end portion extending outwardly between said 2,163,703 4. A knockdown container including, a tubular within said body portion and forming an end closure for the container, and means providing a seat for said expansion disc, said means including a hoop member positioned adjacent said disc, said hoop member havingexterior and interior edge portions, and tongues extending from the adjacent end of said body portion folded respectively around the outside face, the inside edge and outwardly over the inside face of said hoop member, the outwardly extending portion of said tongues being clamped between said hoop member and said expansion disc. f-

5. A knockdown container formed of paperboard material including, a tubular body portion, said body portion having diametrically arranged longitudinally extending fold lines therein permitting substantially fiat collapse of said body portion, a-plate member tightlyfitting within said body portion and forming an end closure for the container, a locking ring positioned adjacent said plate member, said locking ring having exterior and interior edge portions, and foldable means extending from said body portion adapted to be folded around the exterior and the interior edges of said locking ring, the end portions of said foldable means extending outwardly between said locking ring and said plate member whereby to provide with said ring member an inwardly extending supporting seat for said closure-forming plate member.

6. A container formed of paperboard material including, a tubular body portion, a plate member tightlyfitting within said body portion and forming' an end closure for the container, a locking ring positioned adjacent said plate member, said locking ring having exterior and interior edge portions, and foldable means integrallyformed with said body portion extending around the exterior and interior edges of said locking ring and outwardly between said locking ring and said plate member, said ring member and foldable means cooperating to provide an inwardly extending supporting seat for said closure-forming plate memher.

7. A container formed from paperboard material including, a tubular body portion, a relatively stifi, slightly oversbed disc member tightly fitting within said body portion and forming an end closure for the container, a locking ring positioned adjacent said disc member, said locking member having exterior and interior edge'portions, andtongues extending from the adjacent end of said body portion cooperating with said ring member to provide an inwardly extending supporting seat'for said closure-forming disc member, said tongues having a portion positioned exterior to said ring member arranged in close abutting relationship and a portion extending outwardly between said ring member and said disc member. v

8. 'A container formed of paperboard material including, a tubular body portion. a relatively slim-slightly oversined dh'e member tigh ly fitting within said body portion and forming an end closure for the container,.a locking ring posij tioned adjacent said disc member.- and tongues, extendingfromtheadjaoentendoi'saidbodyportion folded around and enclosing said ring member whereby an inwardly extending supporting seat for said disc member is provided.

9. A container formed from paperboard material including, a tubular body portion, a tubular sleeve positioned within said body portion, a relatively' stiif disc member tightly fitting within each end of said body portion closing the ends of said body portion, a locking ring positioned exterior to and adjacent each of said disc members, foldable means extending from each end of said body portion and folded around the adjacent locking ring providing a seatfor the adjacent closure disc, and a line of severance extending around saidbody portion dividing said body portion into separable end closures for said sleeve.

10. A container of the character 'described including, a tubular body portion, a tubular sleeve positioned within said body portion, a relatively stiif end wall-forming plate member tightly fitting within said body portion and seating against the adjacent end of said sleeve, alocking ring positioned exterior to said plate member,- foldable means extending from the-adjacent end of said body-portion and folded around the adjacent locking ring providing a seating flange for said plate member, said plate member being held in position by the adjacent end of said tubular sleeve and the flange thus formed.

11. A container of the character described including, a tubular body portion, a tubular sleeve positioned within said body portion, a relatively stiif closure member tightly fitting within each end of said body portion closing the ends of said body portion, a locking member positioned exterior to. and adjacent each end of said plate member, foldable tongues extending from each end of said body portion folded .around the adiacent locking member to provide with said locking member a seating flange for the adjacent end-closing plate member, each of said plate members being held in position by the adjacent end of said sleeve and the adjacent seating flange thus formed.

12. A container of the character described in- -cluding, a tubular body portion, a relatively stiif plate member tightly fitting within said body portion-and forming an end closure for the container, tabs extending from said body portion and seating against the inside face of said plate means extending from said body portion and seating against the inside face of said plate member to provide a support therefor, alocking member positioned adjacent to and exterior of said plate member,- and tongues extending from the adjacent end of said body portion folded around and enclosing said locking member whereby an inwardly extending overhanging supporting flange lor said plate member is provided.

m amon'aa. 

